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Class XI Chemistry Chemical Bonding 9

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Question 1

Lewis symbol has dot present in it where number of dots represents

Question 2

Calcium has two valence electrons, Oxygen has six valence electrons. In order to achieve octet___ number of valence electrons is transferred from calcium to oxygen to form calcium oxide.

Question 3

Bond length is governed by
(i) Size of anions
(ii) Multiplicity of bonds
(iii) Dielectric constant of medium
(iv) Electronic configuration of cation

Question 4

The bond order in NO is 2.5 while that in NO⁺ is 3. Which of the following statements is true for these two species?

Question 5

Magnetic behavior of NO⁺ is

Question 6

Shielding of the nuclei by increased electron density in bonding MO’s reduces inter nuclei repulsion and thus stabilizes the molecule whereas lower electron density even as compared to the individual atom in anti-bonding MO’s _____ the repulsion and ______the system.

Question 7

Bond angle of any molecule with regular geometry

Question 8

Which molecule has a central atom with trigonal planar geometry?

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Sep 25JEE & BITSAT